Enhanced look development workflow

We've made building and editing materials in the Hypershade more artist-friendly and intuitive, with simpler workflows and a revamped user interface. A rebuilt node-editing interface makes it easier to connect, arrange, and work with shading components. New workflows let you visualize and diagnose complex shading graphs. Customize your UI for the way you work. New layout tabs let you work with shading graphs in a far more organized way.